C. citratus and C. nardus attract, while C. giganteus and C.
schoenanthus repel the melon fly. Based on the above results, we used C. giganteus and C.
nardus to treat zucchini and exposed fruits to melon fly B. Cucurbitae to test the oviposition
behaviour. The results indicated that.after fruit incubation process, the mean number of pupae
collected from zucchini treated with C. nardus was higher than that collected from zucchini
treated with C. giganteus, regardless of the concentrations (P=0.016; Table 4). B. cucurbitae
preferred to oviposit in zucchini treated with C. nardus than in zucchini treated with C.
giganteus.